连线有答案

package com{
    import flash.display.MovieClip;
    import flash.display.Shape;
    import flash.events.MouseEvent;
    import fl.motion.Color;
    import flash.events.Event;
    import flash.geom.Point;
    import flash.display.SimpleButton;

    public class FouthFrame extends MovieClip {
        private var picMc:MovieClip;
        private var wordMc:MovieClip;
        private var emptyMc:MovieClip;
        private var color:uint;
        private var size:uint;
        private var line:Shape;
        private var point:Point;
        private var newPoint:Point;
        private var eTarMc:MovieClip;
        private var mcArr:Array=[];
        private var McArr:Array=[];
        private var wordMusicArr:Array=[""];
        private var picMusicArr:Array=[""];
        public static var answerArr:Array=[];
        public function FouthFrame(_wordMc:MovieClip,_picMc:MovieClip,_emptyMc:MovieClip,_color:uint=0xFF0000,_size:uint=5) {
            wordMc=_wordMc;
            picMc=_picMc;
            emptyMc=_emptyMc;
            color=_color;
            size=_size;
            picMc.buttonMode=true;
            wordMc.buttonMode=true;
            wordMc.addEventListener(MouseEvent.MOUSE_DOWN,onDown);
            picMc.addEventListener(MouseEvent.MOUSE_DOWN,onDown);
        }

        private function onDown(e:MouseEvent) {
            eTarMc=e.target as MovieClip;
            point=new Point(e.target.x,e.target.y);
            newPoint=e.currentTarget.localToGlobal(point);
            var n:int=int(e.target.name.slice(-1))-1;
            if (eTarMc.alpha==0) {
                eTarMc.alpha=1;
                mcArr.push(e.target);
                McArr.push(e.currentTarget);
                if (McArr.length==1) {
                    line=new Shape  ;
                    emptyMc.addChild(line);
                    line.graphics.lineStyle(size,color);
                    line.graphics.moveTo(newPoint.x,newPoint.y);
                } else if (McArr[0]==McArr[1]&&McArr.length==2) {
                    line.graphics.moveTo(newPoint.x,newPoint.y);
                    mcArr[0].alpha=0;
                    McArr.shift();
                    mcArr.shift();
                } else if (McArr[0]!=McArr[1]&&McArr.length ==2) {
                    line.graphics.lineTo(newPoint.x,newPoint.y);
                    for (var i:uint=0; i<mcArr.length; i++) {
                        answerArr.push(mcArr[i].name);
                    }
                    mcArr=[];
                    McArr=[];
                } else if (mcArr[0].name.slice(-1)!=mcArr[1].name.slice(-1)) {
                    mcArr[0].alpha=0;
                    mcArr[1].alpha=0;
                    mcArr=[];
                    McArr=[];
                    emptyMc.removeChild(line);
                }
            }
        }

        private var nextBtn:SimpleButton;
        public function nextFun(_nextBtn:SimpleButton ) {
            nextBtn=_nextBtn;
            nextBtn.addEventListener(MouseEvent.CLICK,onNextBtn);
        }
        private function onNextBtn(e:MouseEvent) {
            if (emptyMc.numChildren==wordMc.numChildren) {
                MovieClip(nextBtn.parent).nextFrame();
                nextBtn.removeEventListener(MouseEvent.CLICK,onNextBtn);
            }
        }
    }
}

        private var arr4:Array = [];
        public function Answer4(_mc:MovieClip,emptyMc:MovieClip) {
            arr4 = FouthFrame.answerArr;
            //_mc["answerMc"].visible=false;
            for (var i:uint=0; i<arr4.length; i++) {
                if (i%2==0) {
                    if (arr4[i].slice(-1) != arr4[i + 1].slice(-1)) {
                        _mc["right"].nextFrame();
                    } else {
                        funnum0();
                    }
                    DrawLine.LineStart(_mc[arr4[i]].x,_mc[arr4[i]].y);
                    DrawLine.LineStop(_mc[arr4[i+1]].x,_mc[arr4[i+1]].y,emptyMc);
                }
            }

        }

//画线

package com{
    import flash.display.MovieClip;
    import flash.display.Shape;

    public class DrawLine extends MovieClip {

        public static var shape:Shape;
        public function DrawLine() {
            // constructor code
        }
        public static function LineStart(startX:Number,startY:Number) {
            shape=new Shape();
            shape.graphics.lineStyle(3,0x9F3D1B,1);
            shape.graphics.moveTo(startX,startY);
        }
        public static function LineStop(stopX:Number,stopY:Number,emptyMc:MovieClip) {
              shape.graphics.lineTo(stopX,stopY);
              emptyMc.addChild(shape)
        }

    }

}